package com.mango.common.valid;

import javax.validation.ConstraintValidator;
import javax.validation.ConstraintValidatorContext;
import java.util.HashSet;
import java.util.Set;

/**
 * @Author:  MangoCookieMilk
 * @Date:     2021/2/13 18:45
 */
public class ListValueConstraintValidator implements ConstraintValidator<ListValue,Integer> {
    private Set<Integer> set = new HashSet<>();

    /**
     * @param constraintAnnotation
     * 初始化方法
     */
    @Override
    public void initialize(ListValue constraintAnnotation) {
        int[] values = constraintAnnotation.value();
        for (int value : values) {
            set.add(value);
        }
    }

    /** 判断是否检验成功
     * @param value 提交的值（需要校验的值）
     * @param context
     * @return
     */
    @Override
    public boolean isValid(Integer value, ConstraintValidatorContext context) {
        return set.contains(value);
    }
}
